Crusher head for homogenizing apparatus



July 22, 1930. A. P ANDERSEN 7 1,

CRUSHER HEAD FOR HOMOGENIZING APPARATUS Filed July 2, 1.929

,4. P fin Jeksen' Patented July 22, 1930 UNITED I STATES ANDERS PETERANDERSEN, OF COPENHAGEN, DENMARK.

' CRUSI-IER HEAD FOR HOMOGENIZIN APPARATUS Application filed July 2,1929, Serial No.

The present invention relates to an arrange ment in crusher heads forhomogenizing apparatus of the kind by which the crushing surfaces on theupper as well as on the lower members are fitted with grooves or thelike, serving to produce eddies in the liquid passing through, in orderto increase the intensity of the mixing, and the invention consists inoffsetting the grooves in the two members relatively to each other forthe purpose of preventing the accumulation of stationary liquid in thegrooves.

One individual embodiment is illustrated on the drawing, which shows avertical longitudinal section of a crusher head.

The crusher head consists of a bottom member l and a top member 2. Thebottom member l is fitted with a central supply channel 3 and ends attop in a crusher surface 4 which as shown may suitably be shaped as aspherical segment fitted along the edge with a plane shoulder 5. The topmember 2 is similarly fitted with a crusher surface 6 shaped like aconcave spherical segment corresponding to the convex crusher surface 4and with a plane shoulder 7 The shoulders 5 and 7, besides being anextension of the crusher surface, serve also as guides for the two partsof the crusher head. Above the orifice of the supply channel 3 the topmemberis fitted with a circular recess 8, and the crusher surfaces ofboth members are fitted with grooves 9 or similar suitable arrangementswhich are offset relatively to each other.

When the liquid is forcedout between the crusher surfaces the grooves ofthe same will produce eddies in the liquid flowing past and, thereby,further the homogenization essentially'.

As mentioned before the crusher surfaces in the embodiment shown arepartly spherical, as this shape in the present case is most suitable,but there is of course nothingto prevent the crusher surfaces fromhaving other suit able forms.

' Having now described my invention, what I claim as new and desire tosecure by Let ters Patent is V A crusher head for homogenizing apparatusincluding top and bottom members hav- 375,489, and in Denmark May 26,1923.

ing circular concentric grooves in the adjacent surfaces thereof, thegrooves in one member being concentric with the grooves in the othermemberand the grooves in the respective members being relatively offsetwhereby during operation of the members particles of material are givenan eddy movement in each groove and are crushed in other positionsduring their following movement toward the next following groove of themembers.

In testimony whereof I 'aflix my signature.

ANDERS P. ANDERSEN.

